# -*- coding: utf-8 -*-

# Define your item pipelines here
#
# Don't forget to add your pipeline to the ITEM_PIPELINES setting
# See: https://docs.scrapy.org/en/latest/topics/item-pipeline.html
import json

class ScrapybookPipeline(object):
    def __init__(self):
        self.fp = open('amazon.json', 'w', encoding='utf-8')


    def open_spider(self, spider):
        print('爬虫开始了')


    def process_item(self, item, spider):
        item_json = json.dumps(dict(item), ensure_ascii=False)
        self.fp.write(item_json + '\n')
        return item

    def close_spider(self, spider):
        self.fp.close()
        print('爬虫结束了')






